baber/WOPTO huggingface dataset:
Patent GB-1189904-A (GB)
Title: Process for Encapsulating Electronic Devices in Plastics and Devices so Produced
IPC: B29C45/14
Filed: 1967-06-30
Abstract: 1,189,904. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 30 June, 1967 [1 July, 1966], No. 30324/67. Heading H1K. A semi-conductor device consists of a semiconductor wafer 22, Fig. 5, bonded to the flattened end of one of a plurality of terminal lead wires, further wires 24, 26 connecting the other lead wires to the wafer. The lead wires are required to be parallel for the greater part of their lengths, but they need not be co-planar: Fig. 5 shows a co-planar and Fig. 12 a non- co-planar arrangement. Plastics encapsulation 42 (not shown in Fig. 5) surrounds the wafer and the lead ends to which it is connected. The device is made by holding the leads frictionally either in a grooved block 10 as in Fig. 5 or in a bore 204 in a block 206 as in Fig. 24. In the latter case the other end of each lead is also flattened and is bent to provide a spring-like portion 202b by which the lead is frictionally held in an enlargement 214 of the bore 204. After securing the wafer, e.g. by gold-foil alloying, to one of the leads and the wires 24, 26 (Fig. 5), or 40, 41 (Fig. 12) to the wafer, the wafer-carrying end of the set of leads is introduced into a mould to which the encapsulating plastics material is supplied. For this purpose a plurality of the blocks 10 or 206 are fitted on each of a pair of trays 84 (Fig. 20, not shown), which are then mounted on a moulding machine which has a mould cavity in each position occupied by a wafer and its adjacent lead ends. The devices are then encapsulated simultaneously.
Patent GB-975140-A (GB)
Title: Magnesium primary battery
IPC: H01M4/46
Filed: 1962-08-08
Abstract: 975,140. Batteries. DOW CHEMICAL CO. Aug. 8, 1962 [Aug. 8, 1961], No. 30334/62. Heading H1B. A primary battery with a magnesium anode has an aqueous electrolyte containing one or more alkali metal or alkaline earth metal chlorides in such proportion as to provide from 70 to 286 grams of chloride per litre. A chromate corrosion inhibitor and a depolarizer are also present, the former may be a salt of chromic acid (e.g. calcium chromate) and the depolarizer may be manganese dioxide. The electrolyte is preferably magnesium chloride.
Patent GB-1190975-A (GB)
Title: Converter for Binary and Binary-Coded Decimal Numbers
IPC: H03M7/08
Filed: 1967-06-30
Abstract: 1,190,975. Code converters. HONEYWELL Inc. 30 June, 1967 [21 July, 1966], No. 30406/67. Heading G4A. Apparatus for converting an m-bit binary signal to an n-digit binary-coded-decimal signal, or vice versa, at the rate of a single binary bit per single clock period comprises an m-bit binary shift register, an array of n decade circuits, each circuit comprising a decade register and respective control logic circuit, input and output means for the shift register and for the decade circuits, the latter circuits being associated with code converters and the shift register and lowest order decade circuit being connected for providing input signals one to the other according to the direction of transfer. As shown (Fig. 1), each decade circuit comprises a 6-bit register 21, a control logic circuit 22 and means for applying signals X and Y to adjacent logic circuits 22. Code converters 23 and 28 at the input and output of the decade circuits respectively convert between conventional binary coded decimal notation and a special 6-bit notation (defined in the Specification) to facilitate the conversion process. One of the bits has a weight of 5, two pairs of bits are used only for conversion in one direction or the other, respectively, and the other pair of bits are used for both directions of transfer. Binary-coded-decimal to binary conversion.- During each clock period the contents of the registers 21 are divided by two and the remainder, if any, transferred to the shift register 25. Each decade circuit is formed by the signal X from the adjacent higher order circuit if the value of that circuit is odd, in which case five is added into the relevant circuit, whereby the division process can be effected in a single clock period. Binary to binary-coded-decimal conversion.- During each clock period a bit is transferred from register 25 into the lowest order decade register 21 and the contents of the registers 21 are multiplied by two. Again, each stage is informed by a signal Y from the adjacent lower order circuit if the value of that circuit is five or more, in which case one is added into the relevant circuit, so that the multiplication process can be completed in a single clock period.
Patent GB-1119073-A (GB)
Title: Polymers derived from episulfides and method of preparation therefor
IPC: C08G65/12
Filed: 1965-07-16
Abstract: Sulphide polymers are prepared by polymerizing at least one episulphide monomer having 2 to 14 aliphatic carbon atoms, in the presence of a catalyst selected from zinc cobalticyanide, zinc ferricyanide, and a zinc diethyl/water catalyst activated by the addition of an organic complexing agent, in a concentration of 0.0001 to 10% by weight of the monomer(s).  Hydrocarbon solvents may be used for the polymerization.  The polymers normally have an intrinsic viscosity in benzene at 25 DEG  C. of at least 0.8.  The polymers may be cured by heating, preferably together with sulphur or zinc oxide. Suitable episulphides include ethylene sulphide, propylene sulphide and copolymers thereof, allythioglycidyl ether and copolymers thereof with propylene sulphide, 1,2 - 3,4 - butadine diepisulphide, 1,4 - bis - (2,3 - epithiopropoxy) benzene, 1,2 - 5,6 - diepithiohexane, 4,41 - bis - (3,4-epithiobutoxy diphenyl dimethyl methane, di - (2,3 - epithiopropoxyphenyl) methane, butylene sulphides, methyl thioglycidyl ether and 1,2-epithio-3-chloro-propane.ALSO:Allyl thioglycidyl ether is prepared by the reaction of allyl glycidyl ether and thiourea in the presence of water.  The reaction is kept below 60 DEG  C. using an ice bath.  When the temperature drops, two layers separate; the upper layer is flash distilled and fractionated to purify the product.
Patent GB-333445-A (GB)
Title: An improved tree or stretcher for high boots
IPC: A43D3/14
Filed: 1929-10-08
Abstract: 333,445. Nielsen, P. C. Oct. 8, 1929. Trees and stretchers -A tree or stretcher for high boots comprises a base plate 1 to engage the sole, a spring plate 2 for engaging the front of the foot portion, and a rod 3 rotatable in the free end of the plate 2 and provided with a screw-threaded hole for engagement with a screwthreaded rod 4 rotatably connected with the base plate, the arrangement being that the rod 4 can be rocked on the base plate for insertion of the device into the boot and then swung perpendicular to the base plate and rotated to stretch the foot portion. The lower end of the rod 4 rotatably engages a rod 5 engaging a bent plate 6 secured to the base plate. A nut 7 on the rod 4 abuts against the lower end of a spring 8 surrounding the rod and urging upwardly a yoke 9 provided with hooks 10 for engaging the usual side loops of the boot, thus stretching the leg portion.
Patent GB-1174322-A (GB)
Title: Process for Producing Saccharides by Fermentation.
IPC: C12P19/04
Filed: 1967-07-03
Abstract: 1,174,322. Production of saccharides. KYOWA HAKKO KOGYO CO. Ltd. 3 July, 1967 [4 July, 1966], No. 30552/67. Heading C2C. [Also in Division C3] A process for producing saccharides by fermentation comprises culturing a microorganism capable of assimilating hydrocarbons and of producing saccharides under aerobic conditions in an aqueous nutrient medium containing at least one hydrocarbon as the main carbon source in the presence of at least one organic surfactant. Optionally at least one antibiotic may also be present. Examples prepare a saccharide mixture containing trehalose, glucose and mannose-arabinose polymer, a mixture of glucose, fructose, ribose, arabinose and trehalose and a white sugar polymer containing mannose, arabinose and amino sugars. Specified micro-organisms are Arthrobacter paraffineus ATC 15591, Brevibacterium ketoglutamicum ATC 15588 and Corynebacterium hydrocarboclastus ATC 15592. After the completion of the fermentation, the fermentation liquor is filtered and passed through a cation exchange resin to remove any amino acids simultaneously produced and also cations. The effluent is then passed through an anion exchange resin to remove organic acids and acidic substances. The saccharides are obtained from the effluent by standard methods.
Patent GB-379911-A (GB)
Title: Process for conditioning water
IPC: C02F5/02
Filed: 1931-11-04
Abstract: Water, particularly brewery water, is softened by treatment with a water-soluble phosphate or mixture of phosphates having in aqueous solution a hydrogen ion concentration corresponding to a pH value not greater than 7,1 at 18 DEG  C. and heating, stirring or aerating, the precipitated matter being subsequently separated from the water.  If the bicarbonate or free carbon dioxide content of the water is high it may, prior to treatment as above, be decarbonated by the addition of lime or by heating.
Patent GB-243903-A (GB)
Title: Improvements in or relating to apparatus for cutting sweetmeats
IPC: A23G7/00
Filed: 1924-12-19
Abstract: 243,903. Baker Perkins, Ltd., Soc. Anon. des Anciens Etablissements A. Savy, Jeanjean et Cie, Head, R., and Prescott, W. E. Dec. 19, 1924. Stream - cutting machines of the kind in which zig-zag knives are used are arranged so that the knives lie diagonally on the path of the materiat and lateral movement is absent. The web of sweetmeat is advanced intermittingly by eccentric and ratchet mechanism and a pressure roller 10 to a cutting-table 14. The cutter 19 is reciprocated vertically by a rod 24. Between the cutter 19 and a shearing plate 16 is placed a stripping member 26. To prevent sagging of soft material a plate 18 supported adjustably on a frame 28 may be moved up against the plate 16. The edges of the plates 16, 18 and stripping member 26 are zig-zagged similarly to the cutter.
Patent GB-899290-A (GB)
Title: Improvements relating to the coating of articles with plastic materials
IPC: H01B13/10
Filed: 1958-09-25
Abstract: 899,290. Ornamenting. GORE & ASSOCIATES Inc., W. L. Sept. 25, 1958 [Sept. 30 1957], No. 30642/58. Class 93 [Also in Group VIII] Articles, such as single or multiple electric conductors, rods, strips or wire mesh, are encapsulated in polytetrafluoroethylene or other fluorocarbon polymers such as copolymers of P.T.F.E. with hexafluoroethylene ethylene fluoropropylenes or chlorotrifluoroethylenes, by including the articles, covered on each side with one or more sheets of the unsintered polyfluorocarbon, between pressing members one or both of which is or are formed with recesses corresponding to the articles, and pressing the whole, preferably so that the unsintered layers where pressed together have a final thickness less than their joint original thickness. The pressed product may be heated after removal from the press, for example to 327C. or to higher temperatures such as 330- 430C., to sinter the polymer. As shown, Fig. 1, parallel electric conductors 13 are passed through rollers 10, 11, each of which has recesses 12 corresponding to the conductors, between sheets 14, 15, of unsintered P.T.F.E., the rollers having a spacing less than the joint thickness of the two sheets. The encapsulated conductors 18 are passed through an oven 16 to sinter the sheets. In a modification one roller only is recessed, forming the planoridged product of Fig. 5. The product may be used as such as a wiring unit or may be slit into individual electric conductors. The sheets on opposite sides of the assembly may be differently coloured, and/or differently coloured strips, placed side-by-side with slight overlap, may be used for one or both sheets. Instead of separated sheets single sheets folded longitudinally around the conductors or other articles may be used. In a further modification a ladder-shaped copper sheet is placed, with an intervening P.T.F.E. sheet, on a die having a corresponding ladder-shaped recess, a second P.T.F.E. sheet is superposed, and the whole pressed cold with a plain press-plate, the assembly being then heated to 350C. in an oven. The products may be used for making printed circuits.
Patent GB-736158-A (GB)
Title: Improvements in or relating to dictating machines
IPC: G11B17/00
Filed: 1952-12-03
Abstract: 736,158. Dictating machines. KINGSLEY, G. Dec. 3, 1952 [Dec. 21, 1951], No. 30660/52. Class 40 (2). A mandrel for supporting a tapered tubular flexible magnetic record of the kind described in Specification 736,157 comprises a tapered member 1 having holes 8 by which means air pressure may be introduced between the member 1 and a record thereon to facilitate the latter's withdrawal. Air pressure may be conveyed through the shaft 3 by an electrically or manually driven pump or bellows. Alternatively, the duct through the shaft 3 may be dispensed with and the end wall of the mandrel made of rubber so that an internal pressure may be produced by finger pressure on the said end wall. A relative internal pressure may also be created by producing a suction or reduced pressure on the outside by passing a sleeve over the mandrel. having an internal flange at each end, and evacuating the annular space thereby created.
Patent GB-284060-A (GB)
Title: Improvements in fenders or kerbs for domestic hearths
IPC: F24B1/198
Filed: 1926-12-04
Abstract: 284,060. Brookes, W. A., and Field, F. Dec. 4, 1926. fevers or curbs.- Parts of the upper portion a of a fender or curb are cut awav or recessed so as to leave parts h of the lower portion b exposed, to permit of the introduction of cast metal or similar ornaments l in the spaces provided. The corners of the upper portion may be shaped as shown at c, d, or e to form such spaces, and further spaces may be provided by making the front and side members f, g of the upper portion of the concave form shown in Fig. 2.
Patent GB-1021107-A (GB)
Title: Web feed devices in typewriters or like machines
IPC: B41J11/44
Filed: 1964-08-04
Abstract: 1,021,107. Typewriters &c. SIS S.A. Aug. 4,1964 [July 22, 1963], No. 30905/64. Heading B6F. An electrically operated paper feeding mechanism for continuous webs or blanks in a typewriter comprises a disc 3, Fig. 1, rotated in synchronism with the feed movement of the web, a mechanism 13 including a feeler arm 14 and a spring biased arm 16 connected to said feeler arm 14 and having an abutment 15, said mechanism co-operating with said disc to actuate an arm 12 of a micro-switch 11, when the arm 14 engages a recess 17 in the disc 3. The switch 11 is also controlled by a rocker arm 18 whose one end 19 co-operates with the arm 12. The control disc 3 which may be of cardboard or plastics material is exchangeable for another disc the recesses 17 of which conform to the arrangement of printing areas of the corresponding blank. In operation, to effect a long feed of the blanks or web, a key (not shown) is depressed, whereby an electromagnet 21 is energized which attracts an end 20 of the rocker arm 18, which in turn pivots the arm 12 of the micro-switch 11 to close a contact in the circuit of a motor 4. The motor drives via a clutch 5 and gearing 6 a shaft 7, Fig. 2, which drives a shaft 9 of the platen 1 via a worm and worm wheel 8. The duration of the feed movement is controlled by the recesses 17 and when the feeler arm 14 engages a recess 17 the abutment 15 pivots the arm 12 downwardly to open the micro-switch 11 and stop the motor 4.
Patent GB-914535-A (GB)
Title: Improvements in or relating to punches
Inventor: HARGREAVES BRIAN
IPC: B21D28/34
Filed: 1960-09-08
Abstract: 914,535. Portable punches. ASHLEY ACCESSORIES Ltd. Aug. 25, 1961 [Sept. 8, 1960], No. 30914/60. Class 31 (2). A portable punch comprises a head 10 having a handle 11 secured thereto and having limbs 12, 13 to receive the material, e.g. the wall of a box, to be punched, the limb 12 having a screwthreaded bore 14 to receive a die member, Fig. 3, and the limb 13 having a screw-threaded bore 15 and a recess 16 to receive a die member, Fig. 4, the die member, Fig. 3, having a screw-threaded bore 17 and a die 20 and the die member, Fig. 4, having a head 21 and a die 23, and the arrangement being such that the die members can be turned to approach each other so that either the die 20 co-operates with the recess 16 to punch a larger hole or the die 23 co-operates with the bore 17 in the die 20 to punch a smaller hole. Preferably, an indication is inscribed on the outer face of the limb 13 to indicate in which direction the head 21 should be turned to make the tool operative to punch the larger or smaller hole. Preferably, the die member, Fig. 3, is turned so that the punching is left in the hole in the material but can readily be pushed out therefrom. Where, however, the tool is used on material which is not sufficiently thick for the punched disc to be partially pushed through, the disc either passes through the bore 17 or sticks in the recess 16 in which case the die 23 is operated by the head 21 to eject the disc.
Patent GB-1042376-A (GB)
Title: Polyurethane lacquers
IPC: C08G18/42
Filed: 1963-08-06
Abstract: A heat hardenable polyurethane lacquer which contains no free -NCO groups and which is stable on storage at room temperature, is prepared by reacting (1) an alkyd resin having more than 2 free -OH groups and containing inert, saturated or unsaturated, straight or branched chain aliphatic residues having at least 8 C atoms in an amount of at least 40% of the weight of the resin, said resin having a viscosity when dissolved in 50% by weight of xylene of less than 200 seconds, measured in accordance with German Standard Specification DIN 53211 in a 4 mm. cup at 20 DEG  C., with (2) a diisocyanate in an amount of more than 1 mol. per mol. of alkyd resin, but not more than the stoichiometric amount, in an inert solvent, the solvent forming more than 40% by weight of the reaction mixture, until no free isocyanate groups can be detected in the reaction product. The alkyd resin may contain natural or synthetic higher fatty acid residues, e.g. alkyd resins modified with linseed oil, soya bean oil, coconut oil or the corresponding fatty acids or the fatty acids of cotton seed oil, corn oil, sunflower oil or tall oil.  The fatty acids may be replaced by fatty alcohols. Polycarboxylic acids which may be used to prepare the alkyd resin are: succinic, adipic, maleic and phthalic acids or their anhydrides. In Example (1) an alkyd resin prepared from soya bean oil fatty acid, pentaerythritol (containing 12% dipentaerythritol), glycerine and isophthalic acid, having a viscosity of 60 seconds (M.W. about 1600) was dissolved in white spirit and reacted with tolylene diisocyanate. A lacquer was obtained after heating for several hours at 80-100 DEG C.
Patent GB-1120425-A (GB)
Title: Process for the production from polyurethane plastic foam of mouldings covered with a continuous surface coating
IPC: C08G18/38
Filed: 1965-07-21
Abstract: A foaming liquid comprising a polyol, a gas generator, an organic polyisocyanate and/or an isocyanate-terminated pre-polymer, and such a weight of polyfunctional organic compound as to be equivalent to 7% of the weight of the polyisocyanate component, is introduced into a mould, the surface of which is at such a temperature below 100 DEG C. (preferably the range 0-70 DEG  C.) that the moulded foam produced is covered by a non-cellular surface layer.  The polyfunctional compound has at least two active hydrogen atoms at least one of which belongs to an amine group, but does not include primary mono-amines. It may be a polyamine, e.g. methylene-bis-ortho-chloroaniline, or an amino alcohol or amino thiol, e.g. 2-amino-2-methyl-1-propanol. Polyether or polyester polyols may be used.  Suitable isocyanate ingredients are toluylene diisocyanate or hexamethylene diisocyanate. The gas generator may be water, monofluorotrichloromethane or methylene chloride.  Conventional foaming and cross-linking catalysts, surface-active agents, pigments, colouring agents, antioxidants or anti-UV agents may be incorporated.  The mould is preferably made of a silicone elastomer which may be contained in a cradle of steel, aluminium or plastics; it may comprise merely a surface on which sheet material may be formed.
Patent GB-1110587-A (GB)
Title: Method of producing a microminiaturised circuit arrangement
IPC: H01L49/02
Filed: 1965-07-21
Abstract: 1,110,587. Circuit assemblies; semi-conductor devices. TELEFUNKEN PATENTVERWERTUNGS-G.m.b.H. 21 July, 1965 [29 July, 1964; 23 Nov., 1964]. No. 31021/65. Headings H1K and H1R. In a method of making a microminiature circuit assembly, a solid state circuit produced in a semi-conductor body is attached to a selfsupporting insulating substrate, after which the individual devices comprised within the solid state circuit are separated from one another by the removal of semi-conductor material to avoid capacitive coupling. The solid state circuit may comprise an insulating passivation layer on the surface which is attached to the substrate, and a further passivation layer may be applied to the complete assembly. The insulating substrate may comprise a sintered, melted, or vapour-deposited layer of glass, or a ceramic body 9, Fig. 4, having a surface glaze 14, which is attached, directly or by means of a layer 15 of insulating solder, to a solid state circuit 16 having a passivation surface layer 1, e.g. of thermally grown silicon oxide. Active devices 2, formed within solid state circuit 16, are separated by the removal of semi-conductor material, as by etching or mechanically, and a resistor 11 is deposited on the exposed surface of passivation layer 1, being connected to one of a number of vapourdeposited electrodes (not shown) of devices 2. Another electrode is connected to a conductive path 17 of Cu or Ni-Cr-Au which is vapourdeposited on the substrate and forms at one end an electrode which co-operates with a vapourdeposited dielectric 18 and a second electrode 19 to form a capacitor. 20 is a meander-shaped resistor deposited on the substrate. Fig. 5 (not shown), depicts alternative capacitors utilizing the passivation layer 1 as dielectric. In Fig. 6 (not shown), passive components are formed on the passivation layer 1 of the solid state circuit and are then covered with a second passivation layer which is mounted on the substrate. Figs. 7-10 (not shown), depict methods of making external contact with deposited conductive layers of the assembly. Fig. 2 (not shown), illustrates the invention with reference to the production of a two-transistor NOR- gate. Solid state circuits may be disposed on opposite faces of a substrate, being interconnected by pins through the substrate. The substrate may comprise ferrite material, and may have a coil deposited thereon.
Patent GB-264777-A (GB)
Title: Improvements in or relating to centrifugal separating machines
IPC: B04B7/14
Filed: 1926-12-07
Abstract: 264,777. Svensson, K. J., and Norling, K. A. P. Sept. 10, 1926, [Convention date]. Density separators.-In a separator having conical liner plates for use with liquids, the position of the inlet from the distributor 2 to the spaces between the plates can be varied to suit different purposes. The distributor has holes 4 arranged at different distances from the axis to correspond with the holes 6 in the liner plates 5. An interchangeable bottom plate 7 has only one set of holes; on the left-hand side of Fig. 6 the hole 8 in the plate 7 is shown corresponding with the outer holes of the liner plates, but in other bottom plates the passage is brought nearer the axis. In the modification shown in Figs. 5 and 7, the plates 5 have radially elongated apertures 6. The bottom plate 7 has a series of holes 8 situated so that all holes at the same distance from the axis correspond with portions of the elongated holes in the plates 5 and the distributor 2. The variation is obtained by angular adjustment of the plate 7. Or the plate 7 may have spirally elongated openings 8, as shown in the right-hand side of Fig. 7.